[問題]OG(11th)PS-Q234

[凱薩琳]

In a certain game, a large contaoner is filled with red, yellow, green, and blue beads worth, respectuvely,7, 5, 3, and 2 points each.A number of beads are then removed from the container. If the product of the point values of the removed beads is 147,000, how many red beads were removed?

(A)5
(B)4
(C)3
(D)2
(E)0

Ans:D

[scujean]

[解]147000=[2^3][5^3][3][7^2]因為紅色代表的點數是7,
[7^2]表示7點被抽到2次

[凱薩琳]

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